A video of ESA’s Planck spacecraft, as seen from Earth. As part of the Space Situational Awareness programme, ESA’s Tenerife observatory often searches for near-Earth objects. Recently, however, it caught a glimpse of the Agency’s Planck orbiting telescope. ESA – Space Situational Awareness

I'm Robert Simpson and I work at Google in London. I am the creator of <a href="http://dotastronomy.com">.Astronomy</a>. I am astrophysicist formerly of the <a href="http://zooniverse.org">Zooniverse</a> at the University of Oxford.